Stock Ticker

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Stock ticker is another expression for "ticker" or "ticker tape," the scrolling display on trading floors, at the bottom of a television or computer screen. The stock ticker shows the last sale price and volume of an equity trade. The trades printed on the stock ticker are updated continually throughout the trading day. The expression "stock ticker" comes from "ticker tape machine," which was a mechanical device invented in the 1870s which recorded, sent, and then printed (by punching holes) stock prices over telegraph wires. Stock ticker has now also come to mean an identifying letter symbol required for a security to trade on an exchange or through an over-the-counter system. Also known as "stock ticker symbol" or "ticker symbol."